| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame] | 1 | /* Copyright (C) 2009-2016 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | |
| 4 | The GNU C Library is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU Lesser General Public |
| 6 | License as published by the Free Software Foundation; either |
| 7 | version 2.1 of the License, or (at your option) any later version. |
| 8 | |
| 9 | The GNU C Library is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | Lesser General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Lesser General Public |
| 15 | License along with the GNU C Library; if not, see |
| 16 | <http://www.gnu.org/licenses/>. */ |
| 17 | |
| 18 | #include <errno.h> |
| 19 | #include <stdbool.h> |
| 20 | #include <stdio.h> |
| 21 | #include <gshadow.h> |
| 22 | #include <nss.h> |
| 23 | |
| 24 | #define _S(x) x ? x : "" |
| 25 | |
| 26 | |
| 27 | /* Write an entry to the given stream. |
| 28 | This must know the format of the group file. */ |
| 29 | int |
| 30 | putsgent (const struct sgrp *g, FILE *stream) |
| 31 | { |
| 32 | int errors = 0; |
| 33 | |
| 34 | if (g->sg_namp == NULL || !__nss_valid_field (g->sg_namp) |
| 35 | || !__nss_valid_field (g->sg_passwd) |
| 36 | || !__nss_valid_list_field (g->sg_adm) |
| 37 | || !__nss_valid_list_field (g->sg_mem)) |
| 38 | { |
| 39 | __set_errno (EINVAL); |
| 40 | return -1; |
| 41 | } |
| 42 | |
| 43 | _IO_flockfile (stream); |
| 44 | |
| 45 | if (fprintf (stream, "%s:%s:", g->sg_namp, _S (g->sg_passwd)) < 0) |
| 46 | ++errors; |
| 47 | |
| 48 | bool first = true; |
| 49 | char **sp = g->sg_adm; |
| 50 | if (sp != NULL) |
| 51 | while (*sp != NULL) |
| 52 | { |
| 53 | if (fprintf (stream, "%s%s", first ? "" : ",", *sp++) < 0) |
| 54 | { |
| 55 | ++errors; |
| 56 | break; |
| 57 | } |
| 58 | first = false; |
| 59 | } |
| 60 | if (putc_unlocked (':', stream) == EOF) |
| 61 | ++errors; |
| 62 | |
| 63 | first = true; |
| 64 | sp = g->sg_mem; |
| 65 | if (sp != NULL) |
| 66 | while (*sp != NULL) |
| 67 | { |
| 68 | if (fprintf (stream, "%s%s", first ? "" : ",", *sp++) < 0) |
| 69 | { |
| 70 | ++errors; |
| 71 | break; |
| 72 | } |
| 73 | first = false; |
| 74 | } |
| 75 | if (putc_unlocked ('\n', stream) == EOF) |
| 76 | ++errors; |
| 77 | |
| 78 | _IO_funlockfile (stream); |
| 79 | |
| 80 | return errors ? -1 : 0; |
| 81 | } |